/usr/include/liggghts/fix_scalar_transport_equation.h is in libliggghts-dev 3.7.0+repack1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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This is the
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╚══════╝╚═╝ ╚═════╝ ╚═════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝®
DEM simulation engine, released by
DCS Computing Gmbh, Linz, Austria
http://www.dcs-computing.com, office@dcs-computing.com
LIGGGHTS® is part of CFDEM®project:
http://www.liggghts.com | http://www.cfdem.com
Core developer and main author:
Christoph Kloss, christoph.kloss@dcs-computing.com
LIGGGHTS® is open-source, distributed under the terms of the GNU Public
License, version 2 or later. It is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. You should have
received a copy of the GNU General Public License along with LIGGGHTS®.
If not, see http://www.gnu.org/licenses . See also top-level README
and LICENSE files.
LIGGGHTS® and CFDEM® are registered trade marks of DCS Computing GmbH,
the producer of the LIGGGHTS® software and the CFDEM®coupling software
See http://www.cfdem.com/terms-trademark-policy for details.
-------------------------------------------------------------------------
Contributing author and copyright for this file:
(if not contributing author is listed, this file has been contributed
by the core developer)
Copyright 2012- DCS Computing GmbH, Linz
Copyright 2009-2012 JKU Linz
Implementation of implicit update algorithm
Copyright 2016 TU Graz, Stefan Radl
Copyright 2016 DCS Computing GmbH, Linz
------------------------------------------------------------------------- */
#ifdef FIX_CLASS
FixStyle(transportequation/scalar,FixScalarTransportEquation)
#else
#ifndef LMP_FIX_SCALAR_TRANSPORT_EQUATION_H
#define LMP_FIX_SCALAR_TRANSPORT_EQUATION_H
#include "fix.h"
namespace LAMMPS_NS {
class FixScalarTransportEquation : public Fix {
public:
FixScalarTransportEquation(class LAMMPS *, int, char **);
~FixScalarTransportEquation();
virtual int setmask();
virtual void post_create();
virtual void pre_delete(bool unfixflag);
virtual void init();
virtual int modify_param(int narg, char **arg);
virtual void updatePtrs();
virtual void initial_integrate_respa(int,int,int);
virtual void initial_integrate(int);
virtual void pre_force(int vflag);
virtual void final_integrate();
virtual double compute_scalar();
bool match_equation_id(const char*);
//Tools for implicit fix handling
bool isImplicit() { return implicitMode_;};
void register_implicit_fixes(char*, double, char*, double);
void updatePtrsImpl();
double *get_capacity();
inline int n_every()
{ return nevery_; }
protected:
void (FixScalarTransportEquation::*advanceQty)();
void advanceQtyExplicit();
void advanceQtyImplicit();
int nlevels_respa;
char *equation_id;
class FixPropertyAtom* fix_quantity;
char *quantity_name;
class FixPropertyAtom* fix_flux;
char *flux_name;
class FixPropertyAtom* fix_source;
char *source_name;
//Implicit fixes, names, and pointers
double crankNicholsonFactor_;
bool implicitMode_;
class FixPropertyAtom* fix_fluidQty_;
char *fluid_name_;
class FixPropertyAtom* fix_transCoeffQty_;
char *transCoeff_name_;
double *fluidQty_;
double *transCoeffQty_;
double fluidQty_0_;
double transCoeffQty_0_;
//storage capacity - would be thermal capacity for heat conduction
int capacity_flag;
class FixPropertyGlobal* fix_capacity;
double *capacity;
char *capacity_name;
double quantity_0;
double *quantity;
double *flux;
double *source;
// flag if integrate quantity or not
bool int_flag;
int nevery_; //integrate only this many time steps (to avoid round-off issues)
bool performedIntegrationLastStep_;
};
}
#endif
#endif
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